how to use GLSL shaders on OpenFL

[Fadeyauso]

like i'm taking shaders from shadertoy and they don't work

[Geokureli]

openfl uses GLSL2.0 shadertoy uses 3.0 which has more features

[Geokureli]

Here's an example of a GLSL 2.0 version of a shader I made
https://github.com/Geokureli/Advent2020/blob/master/source/vfx/DitherShader.hx
and here's the early prototype I made in shadertoy, first
https://www.shadertoy.com/view/tsyfzD

I hope this helps